特种油气藏2017，Vol.24Issue(2)：120-124,5.DOI:10.3969/j.issn.1006-6535.2017.02.024
过热蒸汽吞吐水平井加热半径及产能预测模型
Forecast Model for Heating Radius and Productivity of Horizontal Wells with Overheated Steam Soaking
摘要
Abstract
With consideration to heating radiusand productivities in zones with overheated steam for development of heavy oil reservoirs, instantaneous energy-balance equations in overheated steam have been constructed.By using Laplace transformand inverse transformation, analytic solutions for heating radius in overheated steam zones can be reached.In addition, with consideration to productivity equation with gravity, sophisticated forecast models for heating radiusand productivities have been constructed.Researches have been performed to study impacts of outer boundary temperatures on heating radiusof overheated steam zone, patterns in changes of radius of overheated steamzones, impacts of gravity on productivity and overheated steam heat utilization ratio in different production systems.Research results show heating radius may decrease with increase in outer boundary temperatures of overheated steam zone.At the same time, the heating radius may increase with increases ofsoaking time.In field applications, oil produced through gravity drainage may occupy a large share in total oil production.In addition, overheated steam heat utilization ratios may be enhanced with increases in productivity.The newly-developed models may provide valuable guidance for identification of optimal production/injection parameters and to determine heat losses in relevant zones.关键词
过热蒸汽吞吐/加热半径/产能/重力/热利用率/稠油油藏Key words
overheated steam soaking/heating radius/productivity/gravity/heat utilization ratio/heavy oil reservoirs分类
能源科技引用本文复制引用
孙逢瑞,姚约东,李相方,陈明强,邹明..过热蒸汽吞吐水平井加热半径及产能预测模型[J].特种油气藏,2017,24(2):120-124,5.基金项目
国家科技重大专项"西非、亚太及南美典型油气田开发关键技术研究"子课题"西非深水油田注采参数优化及单井产能预测研究"(2011ZX05030-005-04) （2011ZX05030-005-04）
中海油海洋石油高效开发国家重点实验室第三批开放基金课题"稠油热采流动规律主要影响因素分析"(2015-YXKJ-001) （2015-YXKJ-001）
